Porthole for ships



Jan. 28, 1 30- L. SCHRIEVER ET AL PORTHOLE FOR SHIPS Filed Jan. 27, 1927 ER Y "wen/Ton LUDER SCHRIEVER ALFRED MICHAEL Patented Jan. 28, 1930 UNITED STATES PATENT OFFICE MICHAEL, OF BEEMEN, GERMANY PORTHOLE Fort SHIPS Application filed January 27, 1927, Serial 110,164,064, and in Germany June 23, 192 6.

It has already been proposed toprovide the portholes of ships with air passages in the framework of the porthole, so that fresh air can enter the interior of the ship from without, even when the porthole is closed. Such an arrangement has however only a certain amount of effect when the wind is at right angles to the direction in which the ship is travelling and on the weather-side of the 1g ship, while on the lee-side of the ship the effect is very slight, more particularly as the air in travelling through the air passages in the portholes has its direction altered several times, and other resistances interfere with the free passage of the air.

The invention overcomes these drawbacks and allows of an effective ventilation of the interior of the ship on the lee-side as well as at other places which are not exposed to wind pressure.

A constructional example of the invention is shown in the accompanying drawing,

Figure 1 being a cross-section through a ships porthole according to the invention, Figure 2 an elevation of the porthole (as seen from without), and v Figure 3 a longitudinal section through a detail to an enlarged scale.

A ships porthole with a ventilating arrangement consists substantially of a frame 1 which contains the glass disc 2 of the ships porthole and which is pressed in any suitable manner against a frame 3 connected to the wall of the ship with interposed packing means. In this frame passages 4: are provided, which communicate through openings 5, 6 with the outer air, closing members, for instance balls 7 preventing water from penetrating, when it rises to the level of the port hole. It has already been proposed to provide on the inside of such a frame a strong shutter 8, by which the porthole can be completely closed.

According to the invention a suction de vice, for instance a fan device 9, is organically connected to the porthole. In the constructional example shown in Figures 1, 2 and 3 an electric fan 10 is provided inside a casing 11 at a distance from the same and is connected by means of the said casing directly to the frame 1 of the ships porthole, the casing being attached to pins 13 by means of hooks or eyes 12 provided on it. The casing 11 is pref erably provided with a narrow but elongated suction flange 14 having a suction opening 15 and is placed against a corresponding slotshaped opening 16 in the frame 1. The eas ing 11 is preferably releasably attached to the frame 1, so that the shutter 8 can always be moved and so that the fan device can be mounted on the frame 1 both when the shutter is open and when it is closed. i a

The fan proper 10 rests in bearings 17 of the casing 11 and is'held releasably in the casing by the pressure of a screw 18, holes 19 being provided in bearings for the passage of fresh air.

What we claim is:

1. A ships porthole, comprising in combination a frame fixed to the wallof the ship, a glass pane, a ventilating device receiving the pane and attachedto the inner surface of the frame for the admission of fresh air from outside of the ship to the inside thereof, automatic closing means Within the ventilating device capable of closing when water from outside of the ship presses thereagainst and a suction device connected to the inner surface of the ventilating device, as set forth.

2. A ships porthole, comprising in combination an outer frame fixed to the wall of the ship, a glass pane, a ventilating device including a hollow open frame for receiving the pane and connected to the inner surface of the outer frame and having openings for the admission of air from outside of the ship to the inside thereof, automatic closing means inthe ventilating device capable of closing the air admission opening when water from outside of the ship presses thereagainst and. a suction device connected directly to the inner surface of the ventilating device, as set forth.

8. A ships porthole, comprising in combination an outer frame fixed to the wall of the ship, a glass pane, a second frame surrounding the glass pane and arranged adjacent the outer frame on the ships wall, air passages in the second frame, a suction opening in the said second frame on the inner side of the porthole and in the upper part of the said frame, openings in the second frame on the outer side thereof, connected by the said air passages to the suction opening, closing members in the second frame for closing the openings on the outer side under the action of the Water on the outside of the porthole, a casing on the suction opening on the inner side of the second frame, fixing means on the casing for supporting the same releasahly to the frame, a fan in the casing and supporting means and a pressure screw in the inside of the casing for fixing the fan, as set forth.

4. A ships porthole, comprising in combination an outer frame fixed to the wall of the ship, a glass pane, a second frame surrounding the glass pane, a packing between the glass pane carrying frame and the outer frame on the ships wall, air passages in the second frame, a suction opening in the said second frame on the inner side of the port hole and in the upper part of the said frame, openings in the second frame on the outer side thereof, connected by the said air passages to the suction opening, closing members in the second frame for closing the openings on the outer side under the action of the water on the outside of the porthole, a casing 0n the suction opening on the inner side of the second frame, fixing means on the casing for supporting the same releasably to the frame,afan removably disposed in the casing and supporting means and a pressure screw in the inside of the casing for fixing the fan,

as set forth.

In testimony whereof we have signed our names to this specification.

Lt'mnn SGHRIEVER. ALFRED MICHAEL. 

